Selena Gomez stepped out for the first time since ex-boyfriend Justin Bieber's DUI arrest in L.A. on Thursday, Jan. 23 to buy a soda and cigarettesCredit: Canham/Splash News Online

Justin who? As her ex-boyfriend was getting booked in Miami, Fla. for drag racing and DUI, Selena Gomez was having a much breezier time in L.A. on Thursday, Jan. 23. The "Come & Get It" singer was photographed heading back to her car after a pit stop at a local gas station.

Gomez, 21, was all smiles in a cleavage-baring beige top with black pants and a matching oversized cardigan. The Spring Breakers star also wore sunglasses and carried a soda and a pack of cigarettes.

Earlier this morning, her former love Justin Bieber, 19, was arrested in Miami for DUI and drag racing. In the afternoon, he appeared before a judge in bond court in an orange jumpsuit. His bail was set at $2,500: $1,000 for DUI, $1,000 for resisting arrest, and $500 for an expired Georgia license.

Currently both single, Bieber and Gomez sparked a frenzy earlier this month when they were caught riding Segways together near Bieber's Calabasas, Calif. home. The next night, the "Heartbreaker" singer posted an Instagram picture of the exes getting cozy. "Love the way you look at me," Bieber wrote.

Compared to Bieber, Gomez's life post-split has been looking a lot brighter. Despite canceling her Australian tour last month, the former Disney star has been feeling "powerful" these days.

"Then I turned 20, went through a really bad breakup, and realized I needed to have 'Come & Get It' be amazing," she told Seventeen's March 2014 "Power Issue," with a slight dig to her ex. "I wanted it all to be me. I'm glad it's taken me this long to get where I am because now I am ready for it."

Ready for the next guy, too. "I actually talked to Katy Perry about guys who are intimidated by strong girls. I haven't found someone yet who could understand my lifestyle, support it, love me through it, and not be threatened by it," Gomez told the mag. "It's hard. I do think I might scare some guys, because I'm like, 'I want to change the world! I have dreams! What do you want to do?' But I only know how to be me."